资源简介

(共27张PPT)
Reading for Writing
Unit 5 Working the Land
Learning objectives
In this period, we will
understand the differences between chemical and organic farming and their advantages and disadvantages;
learn about the author’s writing techniques;
learn about the structure of an argumentative essay；
write an argumentative essay to express our views on chemical farming or organic farming.
Lead-in
What is the video mainly about
Why can fruit and vegetables be planted in the gaps between bricks
It takes a long time to harvest crops.
How do you grow crops
What do farmers do to boost yields
plough
sow
fertilize the soil
kill off the pest
water the crop
rid the soil of the weed
Lead-in
Chemical Farming
chemical fertilizers
pesticide
Lead-in
Organic Farming
physical pesticide
organic fertilisers/animals’ waste
Pre-reading
What do you think will be included in the text
Versus: used to show that two teams or sides are against each other 对抗，与...相比
Chemical Versus Organic Farming
What type of writing is it
A. Narration
B. Exposition
C. Argumentation
While-reading
1. What’s chemical farming
2. What’s organic farming
Para.1
Para.3
While-reading
Read for the structure
The _______ and _________ of chemical farming.
benefits
problems
A __________: Organic farming and
how it keeps the soil rich
solution
Conclusion
What type of writing is it
A. Narration
B. Exposition
C. Argumentation
1. Why did many farmers welcome the introduction of chemical farming
2. What problem will the long-term use of chemical pesticides cause
Para.1
While-reading
Read and answer the questions
Many farmers welcomed them as a great way to fight crop
diseases and increase production.
Their long-term use can sometimes harm both the land and people’s health.
Para. Main idea Details
2 Problems with Chemical farming For example, Pesticides can by killing bacteria and insects.
In addition,______________________________________
_____________________________.
This affects not only but also _____.
In fact,___________________________________________
_____________________________________.
As for chemical fertilizers,
Crops are lacking in________________or have .
damage the land
these chemicals can stay in the soil and underground water sources for a long time.
the crops
animals and humans
Solution
organic farming
While-reading
Read para 2 and finish the table
some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the environment.
nutrition/essential minerals
less flavour
How is organic farming different from chemical farming
Para.3
While-reading
Read and and answer the questions
A.Organic farming is farming with a little chemicals.
B.Organic farming is farming through natural means.
C.Organic farming hardly uses natural waste as fertiliser.
Why do organic farmers change the kind of crop grown in a field every year
Para.4
While-reading
Read and and answer the questions
Different crops are grown because they put important
minerals back into the ground, making it ready for the
next batch of crops.
What is the goal of using organic farming methods
While-reading
Read and and answer the questions
The goal of using different organic farming methods is to grow good food while avoiding damage to the environment or to people’s health.
Para.4
Para. Main idea Details
3&4 Organic methods for producing rich soil Organic farming focuses on keeping the soil rich and free of disease through natural means.
For example, Organic farmers use ____________ from animals as fertiliser.
This makes the soil in their fields _______ in minerals.
It also keeps the air, soil, water and crops free of __________.
Organic farmers also use many other methods to produce rich soil.
They often _________________ grown in each field every year.
For instance, they may grow in a filed one year, and then grow there the next.
Why different crops are grown is because they put important __________ back into the ground, making it ready for the next batch of crops.
Organic farmers also plant diverse crops that use different _________ of soil to help keep it rich.
For example, .
natural waste
richer
chemicals
change the crops
corn or wheat
beans
minerals
depths
peanuts grow on the ground’s surface, but many other vegetables put down deep roots
Benefit
While-reading
Read again and finish the table
While-reading
Read and and answer the questions
Some people would prefer to stop the use of man-made chemicals in agriculture entirely. What keeps them from doing so is the fact that chemical farming serves the high demand for food around the world. Organic farming is nowhere near able to meet that need. Therefore, there is still a long way to find a suitable solution that puts sufficient food on the dinner table while keeping people and the environment as healthy as possible.
Can we just stop using man-made chemicals
What’s the author’s attitude towards chemical farming and organic farming
A.Negative B. ambiguous
C. objective D. supportive





however, but, on the contrary, instead, on one hand … on the other hand
for example, for instance, in fact, such as, take … for example
both…and…, not only…but also, in addition, and, also, as well, what’s more, besides, furthermore, moreover, what’s worse
why…is because…, therefore, for this reason, thus, consequently, as a ressult
as for, as an alternative
Summarize the transitional words
contrast
illustrate
add
cause and effect
introduce a new topic
Farming Advantages Disadvantages
Chemical farming ......
......
Organic farming
Fight crop disease
Increase production
Meet people's high demand for food
Crops look beautiful outside
Harm the land
Harm people’s health
Harm the environment
Crops are less in nutrition, essential minerals and flavour
Keep soil rich and free of desease
Avoiding damage to the environment or to people’s health
Cannot meet the demand for food
More efforts and higher cost
Post-reading
Discuss the advantages and disadvantages
An argumentative essay
Your opinion
(Para.1)
Introduction
(Para.2)
Body
(Para.3)
Conclusion
Supporting point2
Supporting point3
Supporting point1
Summary
Writing
个人观点类议论文
Useful Expressions
Para.1 introduce the topic and state your opinion
Recently, the issue of...has been brought into public focus. In my opinion,...
最近，…… 的问题已成为公众关注的焦点。以我看来，...
In recent years, there has been a growing concern about... As far as I'm concerned,...
近年来，人们越来越关注…… 以我看来,...
Useful Expressions
Para.2 supporting points and details(论据)
First of all, there is no denying/doubt that...
On the one hand, … On the other hand, …
Moreover, …. For one thing, … For another,…
To begin with; What’s more; Last but not least
Useful Expressions
Para.3 give a summary(总结)
From what has been discussed above, I believe…通过以上讨论,我相信
Therefore, I hold the belief that.... 因此，我相信....
In short/conclusion , I’m convinced that ....总而言之，我相信....
Ending
Beginning
Body
Topic sentence:
In my opinion, ________farming is preferable to _______ farming because____________.
Argument 1 (Topic sentence) +detail:
Point 1: To begin with, ___________.(Detail)_______.
Point 2: What’s more, ____________.(Detail)_______.
Point 3: Finally,_________________.(Detail)_______.
Conclusion:
In closing, I am fully convinced that__________________.
Write an argumentative essay giving your opinion on chemical or organic farming.
为积极响应学校英语网站《健康生活》栏目的征文活动，请根据以下要点写一篇议论文投稿，说明有机农耕的好处：
1．有机农产品更健康，让人放心；
2．有机农耕对环境不造成破坏；
3．农民售卖价格较高的有机农产品，可以增加收入。
注意：
1. 词数80左右；
2. 可以适当增加细节，以使行文连贯。
Writing Practice
me up with three main points to support your opinion, and then add at least one detail to support each main point.
Writing
Topic sentence: In my opinion, _________.
Point 1: ____________ Detail:_________________
Point 2: ___________ Detail:_________________
Point 3: ___________ Detail:__________________
Conclusion: _____________________________________
express your opinions:
In my eyes…
I’m opposed to…
I’d prefer… because…
From my point of view,…
What I firmly believe in is that…
make a conclusion:
In summary,
In a word,…
All in all,…
To sum up,…
Advantages of Organic Farming
In my eyes, compared to chemical farming, organic farming enjoys its overwhelming superiority. The reasons are as follows.
Firstly, organic food is healthier and safer , as poisonous chemicals like pesticides are forbidden from being used on crops in organic farming. Furthermore, organic farming is environmentally friendly. For instance, organic farmers use natural waste from animals as fertilizer, which is harmless to the environment. Lastly, farmers can increase their income by selling organic food at high price. As people tend to pursue a green life, they are more likely to buy organic fruit and vegetables despite the high prices.
All in all, with incomparable advantages. Therefore, organic farming is expected to benefit more people in the future.
假如你是李华，最近你居住在美国的朋友Tom打算来中国定居，但他不知道该在城市还是农村安家，就此向你征求意见。请根据以下提示给他回一封电子邮件。
城市 农村
交通便利，教育条件好 污染少，空气新鲜
… ….
… …
注意：1. 词数100左右；
2. 不要逐字翻译，并适当补充内容；
3. 开头和结尾已给出，不计入总词数。
Dear Tom，
I'm very glad to hear from you, and I feel it a great honor to give you some information on the problem you mentioned.
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
I hope it can help you make a right decision.
Li Hua
Writing
Thank You

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